Diagnostic trouble code information

Condition 

If voltage in lighting control is less than 10% of voltage in central electronic module (CEM), diagnostic trouble code CEM-8F12 is set.

Substitute Value 

• None.

Possible Source 

• Defective beam setting control actuator.
• Defective contact.
• Open circuit in wire or short circuit to ground.

Fault symptom[s] 

• Beam setting adjustment does not work.